PostgreSQL错误-psql：fe_sendauth：未提供密码

Question

I have PostgreSQL setup in AWS RDS with database name as some_files .
Username of DB is mobileuser . It has been given superuser privileges

I want to copy csv file in table called data_table on daily basis. So, I wrote a python script (using psycopg2) which would connect to this database and copy it. I tried using COPY command. But received an error

COPY mobile user.data_table FROM 'csv_location';

It gave me error that I need to be superuser to perform this action. According to https://forums.aws.amazon.com/thread.jspa?threadID=141798

RDS is a managed service and in order to prevent situations that compromise that service, localhost access is not permitted. The Postgres "COPY" command causes the server itself to read/write files -- potentially directly on the Postgres host. Therefore it is restricted. An alternative is to use the client based, psql instruction "\\copy". Documentation for that command can be found in the Postgres online manual.

So I tried using \\copy command using psql

terminal_command = "psql -h rds_hostname -U mobileuser -w -d some_files -c \copy "+schema_name+"."+table_name+" FROM 'csv_location' DELIMITER '|' CSV HEADER"
subprocess.call(terminal_command,shell=True)

I added .pgpass file to my home directory *:*:*:*:my_password with permissions as 600

Still, it gives me error psql: fe_sendauth: no password supplied I am running python script using root user

Answer 1

While you are ...

running the python script as root user

(why?) the .pgpass file has to be in the home directory of root , not the home directory of your user account.